Class 12 Chemistry Answer Key 2023, Question Paper Analysis for All Sets

Chemistry Class 12 Answer Key 2023

Class 12 Chemistry Answer Key 2023: CBSE Chemistry Class 12 Exam concluded today 28th February 2023. Undoubtedly, after attempting the exam, each student wants to know which questions were correctly attempted by him/her and in which question he/she missed the chance. Here have discussed the detailed Class 12 Chemistry Answer Key 2023 in brief to give you an idea of how many marks you will score in the Chemistry Board Exam. No need to go anywhere else and there just stay with us and we will be covering all the questions one by one with their correct answers here after the exam is over.

CBSE Class 12 Chemistry Answer Key 2023

Our faculty will be discussing all the questions asked in the Class 12 Chemistry Exam, you just have to tally with those you have attempted & calculate your approximate marks. Chemistry Answer Key has been discussed in this article after the conduction of Class 12 Chemistry Exam on 28th February 2023.

CBSE Class 12 Chemistry Answer Key 2023
Exam Conducting Body	Central Board of Secondary Education
Class	CBSE Class 12
Exam Name	Chemistry
Session	2022-23
Post Category	Answer Key
Class 12 Chemistry Exam Date	28th February 2023
Chemistry Answer Key Class 12 (Unofficial )	28th February 2023
Official Website	https://www.cbse.nic.in/

Class 12 Chemistry Answer Key & Analysis 2023

The Unofficial Chemistry Class 12 Answer Key has been discussed by our faculty 0n 28th February 2023 (today itself). Our expert faculty is going to solve the complete Chemistry Question paper to help the students to know what they were wrong and what was right. Join our Class 12 Chemistry Question Paper Analysis 2023 through the below link and know the correct answers to the questions asked.

Class 12 Chemistry Question Paper & Answer (Set 3)

Q1. A compound CaCl2. 6H2O undergoes complete dissociation in water. The Van’t Hoff factor ‘i’ is:

(a) 9 

(b) 6

(c) 3 

(d) 4

Correct Answer- (c) 3 

Q2. For a zero order reaction of the type A→ products, the rate equation may be expressed as

Correct Answer- (a) 

Q3. Which of the following Cu2+ halide is not known?

(a) CuBr2 

(b) CuI2 

(c) CuCl2 

(d) CuF2 

Correct Answer- (b) CuI2

Q4. Which of the following structures represents a-D-glucose? 

Correct Answer- (a) 

Q5. The compounds [Cr(H2O)glCl3, [Cr(H2O), CIC12. H2O and [Cr(H2O) C12]Cl. 2H2O exhibit: 

(a) Linkage isomerism 

(b) Geometrical isomerism 

(c) Ionization isomerism 

(d) Hydrate isomerism 

Correct Answer- (d) Hydrate isomerism 

Q6. Which of the following alkenes on acid-catalysed hydration gives tertiary alcohol?

(a) 2–Butene 

(b) 2-Methylpropene 

(c) Propene 

(d) 1-Butene 

Correct Answer- (b) 2-Methylpropene 

Q7. When nitrobenzene is heated with tin and concentrated HCl, the product formed is:

Correct Answer- (a)

Q8. Reaction of 1-phenyl-2-chloropropane with alcoholic KOH gives mainly:

(a) 1–phenylpropene

(b) 3-phenylpropene 

(c) 1–phenylpropan–3-ol

(d) 1–phenylypropan–2–ol

Correct Answer- (a) 1-phenylpropene

Q9. Corrosion of iron is: 

(a) a decomposition process

(b) a photochemical process

(c) an electrochemical process

(d) a reduction process

Correct Answer- (c) an electrochemical process 

Q10. The number of molecules that react with each other in an elementary reaction is a measure of the: 

(a) activation energy of the reaction 

(b) order of the reaction

(c) stoichiometry of the reaction 

(d) molecularity of the reaction

Correct Answer- (d) molecularity of the reaction

Q11. On hydrolysis, which of the following carbohydrates gives glucose and galactose?

(a) Sucrose

(b) Lactose

(c) Maltose

(d) Cellulose

Correct Answer- (b) Lactose

Q12. The deficiency of which of the following vitamins causes ‘Rickets’?

(a) Vitamin A

(b) Vitamin D

(c) Vitamin B

(d) Vitamin C

Correct Answer- (b) Vitamin D

Q13. Which of the following is an ‘Acetal’?

Correct Answer- (c)

Class 12 Chemistry Question Paper 2023

CBSE conducted the Class 12 Chemistry Board Exam in offline mode. In today’s exam, the paper was divided into 5 sections with 35 questions for which the exam pattern that has been followed is as follows-

1. Section A consists of 18 Questions carrying 1 mark each [Multiple Choice Questions]
2. Section B consists of 7 questions carrying 2 marks each [Very Short Answer Questions]
3. Section C consists of 5 questions carrying 3 marks each [Short Answer Questions]
4. Section D consists of 2 Questions carrying 4 marks each [Case Based Questons]
5. Section E consists of 2 Questions carrying 5 marks each [Long Answer Questions]

Chemistry Class 12 Question Paper Set 2- Download PDF

Chemistry Class 12 Question Paper Set 3- Download PDF

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